Russian astronomer declares that there are so many planets that resemble Earth that very soon we will encounter some of their inhabitants. Also: a mild frenzy on YouTube over video that claims to show a UFO over London.

Scribblenauts, for the Nintendo DS, generated a massive amount of positive buzz after this year's E3 video game trade show, thanks to a unique interface that lets players type in the name of real-world objects they want to use in the game.